75071025 has 36 divisors (see below), whose sum is σ = 135738460. Its totient is φ = 39657600.

The previous prime is 75071023. The next prime is 75071027. The reversal of 75071025 is 52017057.

It is an interprime number because it is at equal distance from previous prime (75071023) and next prime (75071027).

It can be written as a sum of positive squares in 6 ways, for example, as 4359744 + 70711281 = 2088^2 + 8409^2 .

It is not a de Polignac number, because 75071025 - 2¹ = 75071023 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75071025.

It is not an unprimeable number, because it can be changed into a prime (75071023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22995 + ... + 26055.

Almost surely, 2^75071025 is an apocalyptic number.

75071025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75071025 is a deficient number, since it is larger than the sum of its proper divisors (60667435).

75071025 is a wasteful number, since it uses less digits than its factorization.

75071025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186 (or 3178 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 75071025 is about 8664.3536977665. The cubic root of 75071025 is about 421.8494124399.

The spelling of 75071025 in words is "seventy-five million, seventy-one thousand, twenty-five".